Building material



FIG. 1 is a front perspective view of a building material showing our new design.

FIG. 2 is a front view thereof.

FIG. 3 is a back view thereof.

FIG. 4 is a left-side view thereof. The right-side view thereof is a mirror image of the left-side view.

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The jagged broken lines traversing, both vertically and horizontally, through the building material, indicate that any portion of the article between the break lines forms no part of the claimed design.

The broken lines illustrate portions of the front and back surfaces which form no part of the claimed design. 

CLAIM The ornamental design for a building material, as shown and described. 